22541144491 has 2 divisors, whose sum is σ = 22541144492. Its totient is φ = 22541144490.

The previous prime is 22541144467. The next prime is 22541144537. The reversal of 22541144491 is 19444114522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22541144491 - 2⁵ = 22541144459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22541144491.

It is not a weakly prime, because it can be changed into another prime (22541144401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270572245 + 11270572246.

It is an arithmetic number, because the mean of its divisors is an integer number (11270572246).

Almost surely, 2^22541144491 is an apocalyptic number.

22541144491 is a deficient number, since it is larger than the sum of its proper divisors (1).

22541144491 is an equidigital number, since it uses as much as digits as its factorization.

22541144491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The spelling of 22541144491 in words is "twenty-two billion, five hundred forty-one million, one hundred forty-four thousand, four hundred ninety-one".